Cookstove



y 1950 E. ESSON 2,513,407

COOKSTOVE Filed Oct. 18, 1944 3 Sheets-Sheet 1 nunillllllllllilll "mm:

Zmncntor (J P 27 Pl!!! W i will 5550 A! B ,0 (Ittorneg July 4, 1950 Filed Oct. 18, 1944 E. ESSON COOKSTOVE 5 Sheets-Sheet 2 ZSnnentor Qttorneg Patented July 4, 1950 UNITED STAT ES. 'PATE NT FF ICE oooxs'rovm Edwin E'sson, Kansas City, Mo. Application. October 18, 1944, Serial No-559Q297 Claims. 1.

This invention relates to cooking stoves of the type having a firebox from. which products of combustion are directed in heating contact with a cooking, top and/or: an oven and'has for its principal object to provide a stove of this character which provides for selective and effici-ent control of the products of combustion so as to effect heating of the particular portions of the cooking top. to be used and substantially uniform temperatures in all parts of the oven.

Other objects of the invention are to provide a cook stovev for burning solid fuels having the exterior appearance of a modern electric or, as range; to provide a. solid fuel burning cook stove having insulated walls for. confining the.- heat and prevent heating up of the kitchen in which the stove is tobe used; to provide a stove structure wherein the; passageways for products of combustion are readily cleaned and kept in an efficientcondition; to provide a stove structure particularly adapted for application of electric heater units in combination with the firebox; to provide a cook stove composed of unit sections to facilitate assembly and insulation of the walls of the units; and to provide an insulating passageway-between the section containing the firebox and that containing the oven.

In accomplishing these and other objects of the-invention; I have provided improved structure the preferred form of which is illustrated L in the accompanying drawings wherein:

Fig. 1 isaperspective-view of-a cook stove embodying the features of the present invention.

Fig. 2 is a longitudinal view through the stove taken on the line 2-2 of Fig. 1.

Fig. 3 is a horizontal section on the line 3-3 of Fig. 2.

Fig. 4- is a cross section taken on the line 4-4 of Fig. 3.

Fig. 5' is a similar section taken on the line 5-5--of' Fig. 2.

Referring more in detail to the drawings-z I designates a cook stove including" an inner" horizontal duct 13 as shown-in Fig. 4 Extending; horizontally between the side walls 8- and-- 9. anct the walls 6 and H 1sa grate-supporting frame. M having marginal ledge portions l5 sup:- porting the lowerv ends of refractory lining: l'6' constituting the walls of a'fireb'ox ll: which in the illustrated instance is adapted for burning solid fuel such as coal, coke, or the like. The refractory lining at the front and rear of the firebox may be single slabs l8 extending across the" width thereof but the refractory linings forming the sides of the firebox preferably comprise a series of juxtaposed tiles l9 having rabbet-like edges 28 and 2| to form vertical grooves or passageways '22 for flow of products of combustion upwardly of the sides of the fuel bed supported on grate bars 23 that'are carried. on the frame. M".- The space'between the bottom l0 and underside of the grate bars 23' provides a compartment 24' for containing an ash pan 25 that is adapted to be inserted and removed through an opening 26' provided in the lower portion of the front wall 6 and which is normally closed by a door' i'f hinged atone side thereof as The refractory lining terminates short of the upper edgesof the side indicated at 28; Fig. 1-.

walls of the firebox to accommodate a flue outlet opening 29 in the upper portion of the parti tion it and-an outlet 30 in the sidewall S? at a.

point near the front wall Gas best shown in Fig. 4. The opening 3U-is-adapted to be closed by a damper 3t pivoted near the horizontal center may be closed to direct flow of products of combustion through theopening- '29 for direct flow through the down flue l-2 and laterally-through the-duct ["3 for discharge intothe oven unit 3 ofthe stovelater'described: The portion of the side wall 9* containing the opening Sil-i's pref erably inclined'inwardly over" a portion of the firebox to connect with the cooking top 3'6 half of which is supported directly over" the majorthrough air inlet'openings 39 in the front wall" 6.

between the level of the-grate' and" the ash pan opening 26-; The: openings 3!!"are. controlled by a damper 4-0 hinged at the upper edge thereof "as.- indicated at 41". Thed'amper' 4'0 is raised and lowered through a flexible connection 52' having one end fixed to an arm 43 projecting forwardly from the damper 40 and having its other end wound upon a reel 44 carried on a shaft 45 that is mounted in a bracket 46. The shaft 45 has an operating knob 41 extending forwardly in substantially lateral alignment with the operating knob 34.

Check air may be omitted to the upper portion of the firebox through a slide damper 48 manipulated by anarm' or lug 49 extending forwardly therefrom as shown in Fig. 1.

In order that the stove may be enclosed in an insulating covering, the front wall is inset rear.-

tion from the firebox through the down flue I2 and about the shell of the oven, the opening 8| is adapted to be closed by a damper 82 pivotally mounted as indicated at 83 so that it may be swung from closing position with the opening 80 to close the space between the partition I8 and the opposite side of the flue opening I! as shown in dotted lines, Fig. 3.

In order to manipulate the damper 82, I provide a rotatable rod 84 suitablyjournaled alongside the partition I8 and'having anendprojecting through the front wall of the oven unit and carrying an operating knob or lever 85 similar wardly from the forward edges of the side walls to provide a vertical air space 50 having an inlet 5i at the bottom thereof for admitting com-,

bustion supporting air to maintain and suitably control burning of the fuel when the stove is in operation. a

The oven unit 3 includes metal side walls 52-53, a rear wall 54, a front Wall 55, a bottom 53, and atop 5'! to form anintegral unit similar to the firebox and which is adapted to be supported in lateral spaced relation with the side wall 9 of the firebox on the base 5.

As above mentioned,'the side wall 52 is spaced from the side wall '9 to provide a Vertical air passageway 58 therebetween for preventing excessive conduction of heat to that side of the oven unit. The passageway 58 may be open at the lower end 59 and the top and continues upwardly through a space 60 that is provided between the upper portion of the'firebox unit and the unit 4 previously mentioned as best shown in" Fig. 2. "Mounted withinthe oven unit andinsertable through an opening 6| in the front wall 55 is an oven shell 62 having side walls 63 and 64 spaced from the inner fac'esof the side walls 52 and 53 to, provide vertical passageways 65 and 66 there- I between, a bottom 6'! spaced upwardly from the bottom 56 to provide a passageway 68 under the oven and which connects at the side with the passageways 65 and BG. The oven shll'also ineludes a rear wall 53 and a top III, the top being spaced below thetop 51 to provide a passageway I! over the top of the oven which connects with v the upper ends of the side passageways 65 and 3 55. The top 57 of the oven unit has an opening I l2 substantially midway the width of the oven as v 3 shown in Fig. 2.

The unit 4 is maimed" directly upon the top of the oven unit and has a front wall 13 forming an upward continuation of the front wall 55, a side wall I4 forming 'an upper continuation of the w side wall 53. an inclined side wall I5 extending parallel with the'upper inclined portion ofthe firebox to close thesides of the space previously described; and a rear wall I6 having a flue I outlet opening therein. The flue outlet opening is adapted for" connection with a chimney when the stove is inoperation. Extending from the front to the back of the unit 4 are spaced partitions I8 and I9 located on the respective sides:

of the opening I2 to provide for flow of spent products of combustion to the flue outlet 17. The partition 18 substantially registers with the center of the flue outlet opening I! and termi nates in an angularly extending terminal 80 connected with the rear wall I6 at the side of the :outlet opening TI adjacent the firebox unit.

Formed in the angular portion of the partition is an opening SI for direct discharge of products of combustion that are passed from the firebox through the openings 30 and/or 29.

In order to divert flow of products of combus to the operating lever 34 previously described.

The rear end of the rod 84 has an angularly extending. terminal 86 projecting through a slotlike opening 81 provided between the damper and a bracket 88 that is fixed to the damper. It is obvious that when the rod is rotated from the position shown in Fig. 3 the angular end thereof swings the damper 82 to the dotted line position indicated in Fig. 3.

The other portion of the cooking top is carried above a space or passageway 89 that is provided between the portion I5 of the end wall 52 and the partition I8 and closes the top thereof. The passageway 90 between partitions I8 and 19 is closed by an extension SI of the cooking top and which is provided with cleanout openings 92 that are closed by removable lids 93 whereby access is had to the space between the partitions and through the slot-like opening 12 to the passageway across the top of the oven shell.

In order to distribute flow of hot products of combustion substantially uniformly from the front to the back of the oven walls, I provide a division of the passage I58 by providing distribu- Y tion from a duct of gradually decreasing capacity which is defined by forwardly extending partitions or baffles 94 and 95 converging from the rear wall of the oven unitand connecting with the front wall as shown. in Fig. 5. The lower edges 96 of the partitions or baflles slope upwardly so that the effective areas of the outlets 9? thereunder increase in capacityfrom the rear toward the forward portion of the oven'to cause substantially. uniform flow of theproducts of combustion fromthe duct I3 to the. passageways 65 and 66 at the sides of the oven shell, the duct I3 being extended'through theside walls 9 and 52 connected with the baffle 94. v

In order to control outlet of the products of I combustion from the passageway at the top of the oven and prevent channeling thereof toward the outlet end, the opening ."IZ-is .alsopreferably' The units after being assembled upon the; base 5, are preferably covered ;by side panels IUII and IEII and a rear panel I02, ,a-front horizontal panel I03 extending'transversely across the stove above the opening of the oven and a vertical panel,

I04 at the side of the oven opening. :Thepanels I03 and I04 cooperate -with;the;forward edges;- of the side panels Hill and IIJI to; provide door; openings I05 and H16 which are normally closed 5 by hinged panels .or ;doors I01 and I08." The," panels thus describedywith, the possible excepe qn o he ear, ane v;...th.e router :;.sheets:;

an -4oz;

I09: thereof coatediwith: a; suitable finish such porcelaintoenhance; the appearance. of the stove... The.- outer sheetsformv a. space forcontaining an insulating material i it; whereby the front, rear, and side walls of the stove are insulated so as to confine the: heat ofrtheburning fuel and to prevent heating up: of the room in which the stoves are installed. The space ilZ between the side wall 53-.0f the oven-unit and the partition '19 may contain a plurality of deep well cookers H3, depending. therein through openings H4. of the cooking top as best shown,

in Figs. 1 andv 2,.thedeepwell cookers being provided with covers; H5. ..If; desired, the; top. of

the stove including the. cooking top, may be enclosed over when the stove is not in use by hinged covers H6 and ll'l.-. TheJincIined terminal of the wall is also provided with an opening I IS in registry with the down flue [2" to provide outlet for the products of. combustion when the portion of the cooking. top between the upper end of the wall 15. and the partition i8 is used at the same time the oven is heated.

In operating a stove constructed and as-' sembled as described, andassuming that a fire is built within the firebox usingv a solid fuel, such as coal, combustion of the fuel is main! tained by operating the knob on the shaft 45. to cause the reel 44 to wind the cable 42 thereon to raise the damper 40.. Combustion supporting air is then admitted-into the space 58 and through the opening 3.9; responsive to the chimney draft through the flue outlet 11, the air passing upwardly through the grooves 22 .in the refractory blocks so as to support combustion of the fuel and maintain burning of the gases evolved therefrom. The products of combustion. pass upwardly in the fireboxand impinge along the underside of the cooking lids 31 and 38. and are discharged through the opening 29 for flow through the down flue l2 or for direct discharge through the opening 8| depending upon the position of the damper 82; If it is desired not to heat the oven, the damper is moved to the dotted line position, Fig. 3; consequently, the chimney draft will draw the hot products of-combustion under the cooking top. directly to the flue connection. When the damper is in this position, it substantially sealsofi the passageway surrounding the ovenso as tohold the heat in the oven if the oven has been in operation. If it is desired to heat only the side of the cook ing top over the firebox, the damper 3| is closed and if the oven is not in use connection is maintained with the flue through the opening H8.

If it is desired to heat the other half of the cooking top without heating the oven, the damper 3i is opened whereupon a portion of the products of combustion will pass therethrough and along the underside of the plates covering that portion of the cooking top for discharge through the opening 8| to the flue outlet. If the oven is in use, the hot gases passing through the opening 39 will find exit byway of the down flue through the opening H8. It is thus obvious that either one-half or the entire cooking top may be heated depending upon the amount of cooking surface to be used regardless of whether the oven is in or out of use.

When it is desired to use the oven, the damper 82 is moved to the position shown in full lines, Fig. 3, so as to close the opening 8|. The draft is then through the down flue l2 to the duct l3 so that the gases of combustion are discharged between the baflles 94 and 95 and substantially uniformly. distributed 5 along the undersloping edges. 9S thereof to flow in uniformly divided.

streams under the respective sides of the .oven. heating the bottom thereof. The hotgasesafter' passing, under the bottom. of: the oven: pass up! wardly through the passages. 65. and Pie-heating the sides and then. travel across the top to. the. opening. The shape of the opening '52 prevents.

firebox from transmitting heat to the passageway {55- so that thetemperature of the-oven wallv $3 is no hotter than the. wall 64. When the ovenis in use the hot products of combustion impinge against the walls 5i and it of the-deep: well cooker so as to maintain the vessels therein in hot condition.

If desired, electrical units (not shown) may be suspended within the deep well cooking space in place of the deep well cookers so that electricity may be used for cooking purposes. Likewise, electrical and grill units may be placed in the oven and used to bring the oven to desired temperature after which the fire in the firebox will maintain the temperature and the opera.-

tion of the electrical units may be suspended.

From the foregoing, it. is obvious that by pro viding the divided flow around the oven I, have provided a cook stove constructed to maintain substantially uniform temperatures in all parts of the oven and that. the hot products of com bustion may be passed under selected portions of the cooking top so as to provide a cook stove having cooking flexibility approaching stoves using gaseous fuels.

It. is also. apparent that the heat-is confined and, therefore, operation of the stove will not. ex cessively heat the, room in which itis installed-..

The stove. is also or compact arrangement and has the pleasingappearance of a modern gas. or

1. A stove of the character described including a firebox unit, an oven unit having a passageway.

therearound for flow of products of combustion,

a down flue connected with the firebox, a ductv {connecting the down flue with the passageway in the oven unit, a cooking top supported above thefirebox and oven units, a. partition extending under the cooking top intermediate the firebox and oven units and having openingsat opposite endsthereoi, a damper in the opening remote from the down flue, an outlet flue having connection with the firebox and the passageway in the oven unit, and a damper for selectively closing flow of hot products of combustion directly from the firebox to said flue outlet and for diverting hot products of combustion to the down flue and through the passageway of the oven.

unit to said outlet flue.

2. In a stove of the character described, an oven including an inner shell having opposite side walls, a top and a bottom, a casing enclosing the inner shell and having side walls, a top and a bottom spaced from corresponding walls of the inner shell to provide top, bottom and side passages for flow of hot gases, at flue outlet connection from the top passage, a pair of spaced converging bailles between said side walls of the 7 casing and defining a creasing capacity across the bottom passage and having edges diverging from one of said bottoms to provide outlets of gradually increasing ca- [pacity from said duct to portions of said bottom passage leading to the side passages, means for admitting hot gases into the duct for lateral fiow through said outlets to the side passages, and means forming a discharge duct above the top passage and having connection with said top passage through a slot in said top of the oven casing, said slot having gradually decreasing capacity in the direction of the flue outlet connection.

3. A stove of the character described includ-' ing a casing enclosing a firebox and an oven, said oven having a passageway therearound' for flow of products of combustion, a fiue connecting the firebox with the passageway around the oven, a :cooking top supported above the firebox and oven, a partition extending under the cooking top intermediate the firebox and oven and having openings at opposite ends thereof, means for controlling fiow through the opening remote from the fiue which connects the firebox with the passageway around the oven, an outlet fiue' duct having gradually dediverting said hot products of combustion" through said connecting fiue to the flue passage- Ways of the oven.

4. A stove of the character described including firebox and at least a 'part of the oven, a ductl extending across the bottom passage and having outlets into portions of the bottom passage leading to the side passages, duct means connecting the firebox with said duct in the bottom passage [for passing hot gases from the firebox for passage around the oven, a discharge duct extending over the oven and having connection with the top passage, said discharge duct being spaced l from said side of the firebox to provide a passageway for flow of hot products of combustion to heat the portion of the cooking top extending over the oven and having spaced openings, a fiue connection for the casing means having con-:

nection with the discharge duct and with said passageway under the cooking top, a damper 8' controllin the flow [connection remote from the flue connection, and a damper controlling fiow from the passageway under the cooking top to 5'. A stove of the character described including an oven, a'firebox having a side spaced from a side of the oven to provide a side passage, casing means surrounding the firebox and oven and spaced from the oven to provide top and bottom passages and a side-passage cooperating with the side passage between the oven and firebox :for fiowof hot gases around the oven, a cooking top carried by the leasing and extending over the firebox and at least a part of the oven, a pair of spacedconverging baffles dividing the bottom passage and defining a duct having gradually decreasing capacity across the bottom passage and having. edges diverging from the casing means to provide outlet from said duct to portions of the bottom passage leading to the side passages, duct means connecting the firebox with said duct in the bottom passage for passing hot gases from the firebox for passage around the oven, a discharge duct extending over the oven and having connection with the top passage, said discharge duct being spaced from said side of the firebox to provide a passageway for fiow of hot products of combustion under the portion of the cooking top extending over the oven and having spaced openings, a flue connection for the casing means having connection with the discharge duct and with said passageway under the cooking top, a damper controlling the flow connection remote from the flue connection, and a, damper controlling fiow from the passageway under the cooking top to the flue connection.

EDWIN ESSON.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 18,586 Hyde Nov. 10, 1857 46,422 Little Feb. 14, 1865 82,311 Hayes Sept. 22, 1868 150,048 Hyde Apr. 21, 1874 213,756 Jewett Apr. 1, 1879 435,006 .Anthony Aug. 26, 1890 1,238,029 Leggat Aug. 21, 1917 2,072,276 Pickup Mar. 2, 1937 2,091,447 Klemme Aug. 31, 1937 2,121,473 Barker June 21, 1938 FOREIGN PATENTS Number Country Date 597,988 Germany June 4, 1934' 

